Improvement in windmills



2 Sheets--Sheet 1..

J. HALL. v

Wind-Mill.

No. 132,464. Patented on. 22, mm

2 Sheets--Sheet 2.

J. HALL.

Wind-Mill.

Fig. 3.

1w -7r 0 I 1.

I INVENTDR.

a WW v6 NITED STATES JAMES HALL, OF LIGONIER, INDIANA.

IMPROVEMENT IN WINDMILLS.

Specification forming part of Letters Patent No. 132,464, dated October 22, 1872.

To all whom it may concern:

Be it known that I, JAMES HALL, of Ligonier, in the county of Noble and State of Indiana, have invented a new and valuable Improvement in Windmills; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawing making apart of this specification, and to the letters and figures of reference marked thereon.

Figure 1 of the drawing is a representation of a side view of my invention. Fig. 2 is a front view of the same. Fig. 3 is a top view of the same.

My invention has relation to windmills; and consists in the construction and novel arrangement of automatic governing devices, substantially as hereinafter described.

In the drawing, A designates the windmillpedestal supporting the plate B, upon which the turn-table G, having L-shaped guides D, is arranged. E designates the wind-wheel, and F the horizontalshaft to which the same is attached. G designates the bearings for said shaft; and h, a crank-wheel on its inner end. H designates an arm, secured to the turn-table, extending therefrom at a right angle to the shaft F, and holding a wing or vane, I. J indicates the principal vane, having its arm J pivoted to the end of an extension, K, of the turn-table, which is curved as shown. L designates a standard, rising from said extension and having pivoted to its upper part an L-shaped lever, M, the long arm of which holds a weight, a, while the short arm is connected with the arm J of the vane by means of a rod, m, pivoted to the latter at a point between the pivot thereof and the vane. Under ordinary circumstances, as when the wind is moderate, the wheel faces or nearly faces it, and the vane J stands on a line with the shaft F but, when the wind rises, its force, acting upon the vane I, carries the wheel around, so that its edge shall be toward the wind, in which position the wind will have less effect upon it. As the wheel, together with the turn-table, is thus carried around, the vane J is brought against the wind, and, resisting the same, remains still until the face of the wheel becomes parallel with it. By this means the weighted end of the lever M is raised. So soon as the gale moderates the weight falls and the vane swings around, causing the wheel to face the wind again. The end of the vane-arm is weighted, as shown at z, to enable it to swing easily. When the wind is slightly above the required condition, the wheel will be governed accordingly, and will be turned obliquely thereto. N designates an arch, to prevent the weighted lever from being raised too high, and the wheel, in consequence thereof, driven around too far.

What I claim as new isp The pivoted vane J, lever M, connectingarm m, and weight n, in combination with the wheel E, turn-table (l, and vane I, substantially as specified.

In testimony that I claim the above I have hereunto subscribed my name in the presence of two witnesses.

Witnesses: JAMES HALL.

DANIEL W. GREEN, DAVID R. HATHAWAY. 

